Stripping machine



Sept. 4, 1934. R, D. EASTON I STRIPPING MACHINE 3 Sheets-Skeet 1 Filed Aug. 8, 1952 IIIIIILI IIIIIIIIIIIII www n.. N

Sept. 4,'1934. R. D. EASTON STRIPPING MACHINE Filed Aug. 8, 1932 3 Sheets-Sheet 2 .NNN

#fa rneyr Sept. 4, 1934. R. D. EASTON 1,972,648

STRIPPING MACHINE Filed Aug. 8, 1,932 3 Sheets-Sheet 5 I ril Patented Sept. v4, 1934 UNITED STATES STRIYPPING MACHINE Robert D. Easton, Chicago, Ill., assignor to R. R.

Donnelley & Sons Co., Chicago, Ill., a corporation of Illinois Application August 8, 1932, Serial No. 628,875'

16 Claims.

My invention relates,y generally stated, to a machine for applying bonding material, such as glue, or other adhesive, to the opposite faces at opposite edges, respectively, of strip-material, such as,v fabricl used as reinforcement in bookbinding and more specifically, though not exclusively, to the assembling of such strips having the adhesive applied thereto as stated, with signatures and end sheets applied to the oppositely disposed glued surfaces, respectively, of

the strips.

My invention was devised for use more particularly in the manufacture of books according to the disclosure contained in the application of Harley C. Alger for United States Letters Patent on improvement in Books and the lmanufacture of same, Serial No. 619,148, filed June 24, 1932, and which involves the securing of the reinforcing strip at one face along one edge to an end signature of the book, and at its other edge, at its opposite face, to an end sheet either single or double page, the portion of the strip which flatwise opposes the end sheet being glued in the binding of the book to the adjacent cover ci the book. I do not, however, wish to be understood as intending to limit it to the manufacture of books in accordance with saidapplication.

My primary objects are toprovide a machine whereby the adhesive will be applied to the strips as above stated; to assemble the strips with sheets for adherence to the adhesive and particularly signature and end sheets; to provide a simple and positively operating machine for the purposes above stated; and other objects as will be manifest from the following description.

Referring to the accompanying drawings:

Figure 1 is a plan view of a machine constructed in accordance with my invention,

Figure 2 is a longitudinal sectional view of the machine, the section being taken at the line 2-2 on Fig. 1 and viewed in the direction of the arrows.

Figure 3 is a section taken at the lines 3-3 H on Figs. 1 and 4 and viewed in the direction of the respective arrows.

Figure 4 is an enlarged fragmentary plan view of the machine.

Figure 5 is an enlarged Ysection taken at the 50 line 5 5 on Fig. 2 and viewed in the direction of the arrows.

Figure 6 is a fragmentary View in vertical sectional elevation the section being taken at the line 6-6 on Fig. 5 and viewed in the direction of the arrows.

Figure 7 is a cross sectional broken view of the product produced by the machine.

Figure 8 is a view in side elevation of the gluing mechanism of the machine showing the means for insuring simultaneous operation of the glue wheels; and

Figure 9, an enlarged fragmentary plan view showing the gluing mechanism.

As a preface to a detailed description of the machine shown it may be stated that it co. prises generally means 10 for rotatably supporting a roll 11 of the strip material represented at 12 to be provided with an adhesive, such as glue, and to be assembled with the sheet members` such as end sheets one or" which is represented at 13 and signatures one of which is represented at 14; means 15 for applying adhesive to opposite faces of the strip material at its opposite lateral edge portions, means 16 and 17 for supporting the sheet members, respectively, side by side with the adjacent edges of the sheet members disposed at diiferent elevations to receive the strip material l2 between them; reciprocatory means 18 for feeding the sheet members in the machine; endless conveyor means 19 for receiving the sheet members fed by said reciprocating means and continuing the feed thereof; and means for pressing the sheet members against the adhesive coated portions of the strip material to produce the product of Fig. 7.

The particular illustrated machine comprises a frame 20 on which the various means above referred to are supported and having a bed portion 21.

The roll 11 of strip material is supported on the means 10 shown as comprising a reel 22 rotatably mounted at its shaft 23 on the frame of the machine.

The bonding material applying or gluing means l5 to which the strip material 10 extends from the roll thereof comprises two glue receptacles 24 and 25 supported on the machine frame and into which glue wheels 26 and 27 mounted on shafts 28 and 29, respectively, journaled in the walls of the glue pots, extendjdoctor blades 30 and 31 co-operating with these wheels to remove excess glue in accordance with common practice. The glue wheels 26 and 27, which are disposed out of alinement longitudinally of the machine as shown co-operate with glue-transfer wheels 32 and 33, respectively, secured to shafts 34 and 35 journaled `on the frame of the machine to extend above, and in. vertical alinement with, the wheels 26 and 27, respectively, with their peripheries sufficiently close to the peripheries of these wheels to effect the transfer of glue thereto from the wheels 26 and 27, the shafts 34 and 35 carrying other wheels 86 and 37, respectively, which are alined, longitudinally of the machine, with the wheels 33 and 32, respectively.

As the strip of glue desired to be applied in the particular construction shown to the upper side of the strip material 12 at its right-hand edge portion, viewing the strip material as in Fig. 3, is relatively narrow as compared with the strip of glue to be applied to the underside of the strip material at its other edge portion, the wheel 32 is relatively narrow compared with the Width of the Wheel 33.

1t may here be stated that the strip material which passes between rolls 38 and 39 journaled on the machine frame and across a roller 40 likewise journaled on the frame, extends over the transfer wheel 32, thence around a roll 4l on a shaft 42 journaled in arms 43 on the niachine frame, whereby the narrow wheel 32 applies the above referred to narrow strip of glue to the face of the strip material which is uppen most in the travel of the latter to the sheet members to be assembled therewith, the strip material passing from the roll 41 to the transfer wheel 33 over which it extends whereby the other above referred to strip of glue is applied to the underside of the strip material.

In the arrangement shown the various wheels comprising the gluing mechanism `are positively driven by drive mechanism hereinafter do scribed and connected with a sprocket 28a on the shaft 28; and to insure the simultaneous rotation of these various wheels, they are operatively connected together by an endless sprocket chain 44 trained over sprockets 45, 46, 47 and 48 on the shafts 28, 29, 34 and 35, respectively, 'and idler sprockets 49 and 50 on shafts 51 and 52, respectively, mounted in the machine frame.

The chain 44 is trained around the various sprockets referred to in such position relative thereto that the drive of the glue and transfer wheels 26, 27, 32 and 33 will be in the direction of the feed of the strip material therebetween.

The means 16 for supporting one vof the sheet members (the end sheet 13 in the arrangement shown) and located to the rear of the gluing mechanism, comprises a plate 53 on the bed 21 of the machine and which at this portion of the machine is formed of slats spaced apart crosswise of the machine, the inner edge portion of the plate 53 inclining downwardly along its length to a position in which its inner terminal edge, which is turned upwardly and outwardly as represented at 54, extends in a plane below the path of movement of the strip material 12.

The operator, Vin applying the end `sheet 13 to the plate 53, inserts its inner longitudinal edge 13a under the flange 54 to the position shown in Fig. 3, the sheet 13 extending at its opposite edge along a guide plate extending up wardly from the bed of the machine.

The means 17 for supporting the other sheet member (the signature 14 in the arrangement shown) and located alongside the plate 53, comprises a plate 56 extending lengthwise of the machine and supported to overlap one edge of the strip material 12 but at an elevation above the path of movement of the strip material, and on which plate the inner edge of the signature 14 is supported. The inner edge of the plate 56 is provided with an upwardly extending flange 57 forming a stop and guide for the signature 14 the outer edge of which rests on the bed of the machine and extends along a guide plate 58 rising from the bed.

The sheet members 13 and 14 applied to the positions as shown and above described are fed along the supporting means 16 and 17, respectively, by the reciprocating means 18 above referred to and comprising the following mechanism:

Extending along the machine between the longitudinal sides thereof is a guide rod 60 on which a cross bar 61 is mounted at a slide bearing 62 thereon, the ends of the cross bar 61 slidingk along guidey rods 60e supported at op posite longitudinal sides of the machine. The cross bar61 is provided With two pairs of upright fingers the iingers of one pair of which and represented at 63 and co-operating with the end sheets 13, extend upwardly through the slotted bed and through slots 64 in the plate 53 and the fingers of the other pair of which and represented at 65 and co-operating with the signatures 14, extend upwardly through the slotted bed and between the plates 56 and 58.

The cross bar 61 is' reciprocated, to feed the sheets and signatures along the supporting plates therefor andv above described, by means of a connecting rod 66` pivoted at 67 to the slide bearing 62, and at its opposite end to a crank pin 68 carried by a disk 69 secured to a shaft 78 journaled on the machine frameand provided'with a pulley 71 belted at 72 to a drive lpulley 73 driven as by a motor 74 through the medium of speed-reducingv mechanism represented at 200 and of any desirable construction, the pulley 73 being connected with the relatively slowly driven shaft 732L ofthe speed-reducing mechanism 200.

As will be understood, the operator applies the end sheet `13 and the signature 14 to the supporting means 16 and 17 while the cross bar 6l is in the retracted position shown in full lines in Fig. 2 and in the rearward movement of this cross bar the end sheet and signature are slid along their supporting means into a position to be engaged bythe endless conveyor means 19 which will now be described. Y

The conveyor means 19 comprise an upper pair of spaced apart endless belts 75 and a lower, relatively wide, endless belt 76y extending directly below the belts 75 and spanning the space therebetween, all of these belts extending longitudinally of the machine. The belts 75 extend` at opposite sides of the plane of movement of the strip material 12 and the belt 76 extends in longitudinal alinement with the latter. The belts 75 are trained about spaced end pub leys 77 and 78 secured to shafts 79 and 80, respectively, journaled in a supplemental frame 81 having end pieces 82 and 83, this frame being supported for vertical adjustment by means of threaded shafts 84 and 85 journaled in heads 86 and 87 carried by arms 88 and `89 secured at their outer ends to the frame of the machine and extending at their free ends over the frame 81, the lower ends of the shafts 84 and 85 havingthreaded engagement with recesses in the cross members 82 and 83 whereby the frame 81 may be adjusted vertically by rotation of these shafts.

The shafts 84 and 85 are provided at their upper ends with bevel gears 90 and 91 which respectively mesh with bevel gears 92 and 93 se cured to a shaft 94 journaled rin arms 95 and 96 on the heads 86 and 87, to insure simultanegeraete 6115 tlt'I 1 1511 Shafts; 314 and 815 the Sm' fil-.11619313 1711 $211518 Speed 111711611' hand Wheel $17 Shwl Cl'IieCtef with the' Shaft 84 1S rotated.

The belt '.15' is shown as extendingbeneath pulleys-911 and 99' journalied on the frame 81 and V intedt' beit tightening pulleys U for maintaining the belt in the' desired taut eer'iditrori. l

'T he frame l isalso provided witnA parallel series of grooved rollers 101 which extend length@ wise of the machine and are located, respec; tively, within thel confines of the endless belts 75- arid are adaptedto; engage with trie lower horizontal reaches of these belts and yieldingly force the latter downwardly. The' rollers 101 to this eric are' j'urriaied et stub shafts 102 on the outer' eri-ds of roer members piveted et their other ends' to the' sides of the frame '31, with springs copperating therewith and yieldingly forging tlieY rolls 101 downwardly. I

The mechanisms NoperatingI the rollers 101 as Stated tli Same each roller and therefore the mechanism for oneonly {'{hereofis iliistrated in Fig. 6 wherein the4 rock rneinbe'r reierredto iS represented at 103, the pivotal f'ollleciion thereof with the frame 81 at 104 and thespring at 105, The rock member 103l is located in an openinglSln in a side or the' frame Si, this opening 81CL being so'- sliaped, asshown, as to provide a journaling porti-en sib for the pivoting pore` tion 104 referred to and comprising a cylindrical head on one end of the member' 103, the remain-j der of the' walls of this' opening being so shaped. and spaced apartes to permit the rock member 103 to rock therein, the spring, shown as a coil spring, being located in a recess in the frame side and pressing downwardly against the upper suriace of the rock member 103.

r To prevent lateral displacement of theV belts '1S from the pulleys supporting them I 'provide guide-bloclrsV 1012L containing recesses 101'b along their undersides at which tliey straddle the belts 75, these blocks being slidably mounted, for adjustment crosswise oi the frame, on a rod `81 secured at its ends to the Vside members of the fija'nie 81, and associated with a'djustingscrews 1 01' rotatable in the frame 81 and threaded in theblocks 101a for adjusting the blocks into the desired position.

` b'rire beit 'is is trained around rollers 107 and 108 carried by shafts 109 and 1140A journaled in a stationary fratrie 111, therbelt T6 passing over rollers 1,12 and 113 on Shafts 114 and 115, iespectively, carried by' the" frame 111 and beneath a belt tightener pulley 116. 4

The freine 111 is provided with a series or roliers 117 which are located within the confines of the belt 76 yand are in vertical'Y alihement, respectively, with the several pairs oi rollers 101, each of the rollers 117 lf3-'operating with spring 'rneans operating to yieldingly 'force thei'n upwardly against the upper horizontal reach of the belt '16, as described oi (the rollers 101.

Both of the belts and '76 are shown as positivelyV driven to travel at their opposed horizontal reach portions in the saine Vdirection and at the saine speed, by means of drive mecha nisrn comprising a gear 118 secured to the shaft 7c and `meshing with a gear iiasecured to a shaft 120 journaled on the frame of the machine, the 'shaft 120 being provided with a sprocket 121 connected by a chain 122 with a sprocket 123 on the shaft 80. The gear 1 19 meshes with a gear 1:24 'secured to 'a shaft 125 j'urnaid on 'or the frame 81 and to which the tubular por rranie di the machine arid carrying' a sprocket' 1 {26 connected by e, chain 12v with they spreerzet 12S err the sha-ft 110:

From the foregoing" description it will beunderstood that the end sheets and signatures advanced by the feed mechanism 18 enter between the upper and lower belts- 75 and '76- between which they are Vgiipi'aed and positively fed along' machine.

During' this feeding of the end sheets and sig-V natures pressure is applied to press together the strip material 12 and the end sheets 13 and signatures 14 in the relative" positions shown in Fig. 7 to insure adherence ofV the glue on the strip -material to the opposing surfaces of the end sheets and signatures, the means shown ier this purpose comprising a plurality of presser devices 129 which are located above the belt 76 and ar(3 adapted to press against the upper surface of the signature' and the portion of the 'strip material 12 which overlies' the end sheet at the joint between the latter and the signature, the beit '76 forming a backing resisting the pressure exerted by the' devices 129, which are shown as each comprising a series or spring tongues 130 by which the pressure referred to is exerted.

The spring tongues `130 of each presser device .are shown as formed by slotting an edge portion or suitable elastic material, such as spring steel, the other edge of which is rolled upon itself to form a tubular portion 131. The presser de`` vices are mounted at their tubular portions 131 on cross bars 132 secured to the 'opposite sides tions 131 are secured against rotation, the parts being so arranged that the lingers 130, in the movement therebetween of the end sheets, sig= natures and strip material, will be flexed upwardly and placed under tension thus exertingv the desired pressure for insuring the adhesion of the vstrip material 12 to the end sheets and signatures.

Y In the construction shown the mechanism for driving the sprocket 28a to drive the wheels of the gluing mechanism comprises a sprocket- ;chain engaging the sprocket y28 and a sprocket 125h on the shaft k125, these parts being so proportioned that the 'surface speed of the wheels oi the gluing mechanism will be the same as the surface speed ci the belts '75 and '76 and thus the strip material 12 will feed with the `sheet members 13 and 14, Without relative slippage.

The machine shown is provided to the rear or" the feeding mechanism 19 with means for reduced by the machine, this mechanism comprising a series of parallel endless conveyor belts 133 extending lengthwise of the machine and trained over pulleys 134 and 135 secured to shafts 136 and 137, respectively, journaled on the machine irame. The endless belts 133 are shown as driven by means of 'a sprocket chain 138 trained over a sprocket 139 on the shaft 136 and a 'sprocket 140 secured to the she-,rt 110.

As will be understood, the spring-pressed rolls ceiv'ing and conveying .away the product pro- 139 fed pair of these members, viz., with the minimum space therebetween, to avoid waste of the strip material which would be severed between each adjacent pair of sheet members in any suitable way after passing beyond the feed means 19.

While I have illustrated and described a particular construction of machine embodying my invention, I do not wish to be understood as intending to limit it thereto, as the same may be variously modified and altered without departing from the spirit of the invention.

What I claim as new, and desire to secure by Letters Patent, is:

l. In a machine of the character set forth, the combination of means for supporting, side by side, sheet members, to be connected together by strip material, with their adjacent edge porn tions spaced apart in a direction crosswise of said sheet members and with strip material disposed in said space and lapping at bonding material coated surfaces thereof opposite faces of said edge portions, means for moving said sheet members along said first-named means, and means for uniting the bonding material on said strip material to the lapping portions of said sheet members.

2. In a machine of the character set forth,

the combination of means for supporting, side by side, sheet members, to be connected together by strip material, with their adjacent edge portions spaced part in a direction crosswise of said sheet members and with strip material disposed in said space and lapping, at bonding materialcoated surfaces thereof, opposite faces of said edge portions, means for moving said Sheet members along said first-named means, means for uniting the bonding lmaterial on said strip material to the lapping portions of said sheet members, and means to which said sheet members are delivered by said second-named means for moving said sheet members and said strip material.

3. In a machine of the character set forth, the combination of means for supporting, side by side, sheet members, to be connected together by strip material, with their-adjacent edge portions spaced apart in a direction crosswise of said sheet members and with strip material disposed in said space and lapping, at bonding material-coated surfaces thereof, opposite faces of said edge portions, reciprocatory means for moving said sheet members along said first-named means, and means for uniting the bonding material on said strip material to the lapping portions of said sheet members.

4. In a machine of the character set forth, the combination of means for supporting, side by side, sheet members, to be connected together by strip material, with their adjacent edge portions spaced apart in a direction crosswise of said sheet members and with strip material disposed in said space and lapping, at bonding materialcoated surfaces thereof, opposite faces of said edge portions, means for moving said sheet members along said rst-named means, means for uniting the bonding material on said strip material to the lapping portions of said sheet members, and means to which said sheet members are delivered by said second-named means for feeding said sheet members and said strip material and comprising opposed endless traveling belts between which the sheet members are gripped. y

5. In a machine of the character set forth, the

combination of means for supporting, side by side, sheet members, to be connected together by strip material, with their adjacent edge por-- tions spaced apart in a direction crosswise of said sheet members and with strip material disposed in said space and lapping opposite faces of said edge portions, said means comprising supporting member for said sheet members and guide members adjacent the inner edges of said sheet members the one of said guide members for the lower sheet member having a portion adapted to overlie the sheet member beneath it.

G. In a machine of the character set forth, the combination of means engaging sheet members disposed sidevby side for feeding the same, with bonding material-coated strip material flatwise opposing faces of said sheet members at their adjacent edges, and means for pressing together said sheet members and strip material.

7. In a machine of the character set forth, the combination of means engaging sheet membersdisposed side by side for feeding the same, with bonding material-coated strip material atwise opposing faces of said sheet members at their adjacent edges, and spring fingers operating to press together said sheet members and strip material.

8. In a machine of the character set forth, the combination of means for supporting, side by side, sheet members, to be connected together by strip material, with their adjacent edge portions spaced apart in a direction crosswise of said sheet members, bonding material-applying members positioned to apply bonding material to one face of strip material at one of its lateral margins and to the other face thereof at its opposite lateral margins, the strip material being disposed in the space between said sheet members and lapping at its bonding materialcoated surfaces opposite faces of said edge portions, means for moving said sheet members along said iirst-named means, and means for adhering the bonding material on said strip material to thelapping portions of said sheet mem.- bers.

9. A'rnachine for uniting strip material, with the adjacent edges of sheet members arranged side by side, comprising means for feeding sheet members with adjacent edges thereof spaced apart in a direction crosswise of the sheet members, means for feeding strip material disposed in the space between said sheet members and lapping the adjacent edge portions of said sheet members at opposite faces thereof, the portions of said strip material at which it laps said sheet members being coated with bonding material, and means for pressing the lapping edge portions of said sheet members into uniting contact with said strip material.

10. In a machine of the character set forth, means to position strip material partially coated with bonding material on opposite faces, said bonding material being along opposite edge portions of the strip material, guide means for the positioningof. sheet members in substantial parallelism on opposite faces of said strip and partially overlapping the strip opposite the bonding material thereon, and means operable to unite the bonding material on said strip material to the overlapping portions of said sheet members.

11. In a machine of the character set forth, means to position strip material, guide means for the positioning of sheet members in substantial parallelism on opposite faces ofv the strip material and partially overlapping the adjacent opposite edge portions of the strip material, and means operable to unite said strip material to the overlapping portions of said sheet members by material disposed between the strip material and overlapping portions of the sheet members.

12. In a machine of the character set forth the combination of means operable to feed sheet members disposed side by side in parallelism with strip material flatwise opposing faces of said sheet members at their adjacent edges, and means operable in combination with a securing means to effect relative movement of said sheet members and strip material to secure them together.

13. In a machine of the character set forth, means to position strip material guide means for the positioning of sheet members in substantial parallelism on opposite faces of and out of contact With the strip material and partially overlapping the adjacent opposite edge portions of the strip material, and means operable to unite said strip material tothe overlapping portions of said sheet members by material disposed between the strip material and overlapping portions of the sheet members.

14. In a machine of the character set forth, means to position strip material, guide means for the positioning of sheet members in substantial parallelism on opposite faces of the strip material and partially overlapping the adjacent opposite edge portions of the strip material, and

means located beyond saidguide means in the line of advance of the strip material and sheet members operable to unite said strip material to the overlapping portions of said sheet members by material disposed between the strip material and overlapping portions of thek sheet members. 1

15. The method of uniting sheet members With their edges in substantial registry by means of a strip member bonded to alternate faces of the sheet members at the margins of each, which comprises: applying adhesive material to one of each of the surfaces to be bonded; positioning the sheet members in spaced apart relation in a direction laterally thereof with their edges substantially in registry; positioning the strip member in said space with its margins lapping the margins of said sheet members; and bringing the adhesive carrying surfaces into contact with the opposing surfaces.

16. The method. of uniting strip material With adjacent edges of sheet members arranged edge to edge which comprises, applying adhesive material to opposite margins of opposite faces of the strip material, placing the members in a position relatively spaced apart, with their edges substantially in registry, and the strip material in said space to lap both sheet members, and bringing the sheet members into contact With said adhesive coated surfaces of the strip material.

ROBERT D. EASTON. 

